A programmable optical pointing device. A read/write storage chip stores control code, and an integrated chip includes a photo sensor array and a control circuit. The control circuit reads the control code from the read/write storage chip and accordingly drives the photo sensor array to detect images on an operating surface.
Legal claims defining the scope of protection, as filed with the USPTO.
1. An optical pointing device configuration method, for providing a control code to a control circuit in the optical pointing device, comprising: providing a programming mode integrated chip including a static random access memory and a read/write storage chip electrically connected with the programming mode integrated chip; storing the control code in the read/write storage chip; reading of the control code from the read/write storage chip by the programming mode integrated chip, and storing the control code in the static random access memory on the programming mode integrated chip; driving a photo sensor array on the programming mode integrated chip to detect images on an operating surface according to the control code; providing a mass-production integrated chip including a mask ROM; storing the control code in the mask ROM of the mass-production integrated chip; and replacing the programming mode integrated chip and the read/write storage chip by the mass-production integrated chip.
2. The configuration method as claimed in claim 1 , wherein the integrated chip and the read/write storage chip are disposed in an optical mouse, the configuration method further comprising a step of outputting a displacement of the optical mouse according to the images.
3. The configuration method as claimed in claim 1 , wherein the control code is stored in an electrically erasable programmable read-only memory (EEPROM).
4. The configuration method as claimed in claim 1 , wherein the control circuit of the optical pointing device is a micro-controller unit.
5. The configuration method as claimed in claim 1 , wherein the control code is read from the read/write storage chip via a series port interface by the control circuit on the integrated chip.
6. An optical pointing device, comprising an integrated chip comprising a photo sensor array and a control circuit, wherein the control circuit comprises a read-only memory storing a control code controlling the photo sensor array, and the control code is generated according to the configuration method as claimed in claim 1 for performance optimization of the optical pointing device.
7. The optical pointing device as claimed in claim 6 , wherein the control circuit is a micro-controller unit (MCU).
8. The optical pointing device as claimed in claim 6 , wherein the read-only memory is a mask read-only memory (mask ROM).
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
November 23, 2004
February 10, 2009
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